Cat's new system is in command. Once upon a time you would have been laughed at for saying you could operate a dozer on a construction site 1,700 miles away - but not anymore, say Caterpillar.
Automated road repairs, using 3D printing, could save money and vastly reduce disruption, and researchers are already showing it’s possible - Kristina Smith reports
It’s the middle of the night, and in the street below a team is busy carrying out repairs to the road surface. But there isn’t a human in sight.
A road repair drone has landed at the site of a crack and a 3D asphalt printer is now busy filling in that crack. A group of traffic cone drones have positioned themselves around the repair location
The Cat D7R track-type tractor is said to continue the firm’s R family tradition in providing a simple, robust, easily serviced machine. The new model incorporates components said by Cat to have a proven history of reliability and durability in the most severe applications, including heavy dozing, ripping, land clearing and mining. The D7R’s Cat C9 ACERT engine, with a net power rating of 174 kW at rated engine speed, meets standards in accordance with China Stage II (GB 20891-2007), EPA Tier 2 and EU Stage
Work continues on the 2.3km Mersey Gateway signature bridge project close to Liverpool in the UK. David Arminas reports on some of the construction highlights. Under construction is a cable-stayed structure with three towers that will span the Mersey River’s expansive mud flats between the towns of Runcorn and Widnes near Liverpool. Including the approach viaducts on each side, it will be 2.3km long with a river span of 1km. The main bridge deck will be reinforced concrete. The 80m-high central tower will b
